Improvement in middlings-purifiers



1.1. MAYIERSu Middlings-Purers.

Patented March 3.1874.

UNTTEE STATES PATENT OFFICE.

JOHN J. MAYEEs, OF DAYTON, OHIO.

IMPROVEMENT IN MIDDLINGS-PURIFIERS.

Specification forming part of Letters Patent No. 148,229, dated March 3, 1874; application filed A January 12, 1874. A

To all whom it may concern:

Be it known that I, JOHN J. MnYERs, of Dayton, in the county of Montgomery and State of Ohio, have invented a certain new and useful Improvement in Middlings-Puriiiers, of which the following is a full, clear, and exact description, reference being had to the annexed drawing, in which- Figure 1 is a plan view of my machine with its top removed. Fig. 2 is a longitudinal vertical section.

Correspondingparts in both figures are designated by like letters.

This invention relates to a certa-in improvement in middlings-purifiers; and it consists of a reciprocating frame, having two or more sieves, each succeeding one occupying a higher plane, and furnished or armed at its forward end with a metallic plate, and, further, of knoekers supported in posts or uprights, adjustably attached to the sieve-frame, substantially as hereinafter more fully set forth.

To enable others skilled in the art to which my invention appertains to make and use the same, I will proceed to describe it.

In the annexed drawing, A refers to the body of the machine, suitably mounted or supported upon and between upright frames, the vertical pieces of which are extended, so as to form legs for supporting the body A in an elevated position. The body A has fitted to its lower side a trough, extending its entire length and supplied with openings, designated by the dotted lines D D, and over which are fitted slides. Over the said body is adjusted a cover or top, which is penetrated by the supply-tube P. l) is a discharge opening supplied to the rear end of the machine. Upon brackets secured to the front end of the machine are journaled shafts, carrying the pulleys H and l, one of which shafts is designated by the letter It. E is a frame, suspended by means of cords o o, or other suitable medium, at its front end, from the upper edges of the body A, and at its rear end from a shaft or roller, on, by which the latter end may be raised and lowered at pleasure. A pulley, I, attached to the opposite end of the shaft It, receives a band, which drives the latter, and it, in turn, drives or imparts areciprocating motion to the frame E, the said shaft beingembraced at its cranked portion by a pitman, M, extending from the said frame. Around the pulleys H and Kpasses a belt, which communicates motionto abeveled pinion, L, upon the opposite end of the shaft of the pulley K, which, in turn, gives motion to a second beveled pinion upon the projecting l end of the conveyer C, thus transmitting motion to the latter, which receives and carries the finer particles falling through and from the sieves to the openings D D in the bottom of the trough of the machine, whence they make their escape. F F1 F2 are a series of sieves, suitably secured in the reciprocating frame E, each succeeding one occupying a higher plane, as shown in the drawing, and provided with bolting-cloth of different degrees of neness. Each of the said sieves is supplied at its forward end with a metallic plate, f f1 f2, to relieve the bolting-cloth from the force of the falling middlings, as such are introduced into the machine through the tube P, and pass to each successive sieve. rllhe metallic plate f 2 of the screen or wire F2, situated directly below the supply-tube P, is provided with vertical flanges, divergin g from each other as they approach the bolting-eloth, the object'of which is to distribute the middlings before reaching the bolting-cloth. In practice, the flanges of the plate f2 should terminate at the dotted line marked thereon, as seen in Fig. 2. Another object of arming the sieves with the metallic plates f f 1 f2 is to cause the lengthened portions of the middlings to pass over the sieve with their ilat sides to the surfaces of the said sieves, which renders them less liable to pass through the sieves, it only being desirable to let the round particles of the middlings to pass through the sieves. It will be observed that the plate f2, in consequence of its being secured to the forward end of the uppermost sieve directly under the tube P, is considerably larger than the others, such being requisite to -ward off the great amount of force produced purpose of separating the particles of the middlings. The object of' making the upright-s or posts N N adjustable is to enable them to be set farther apart or brought closer together, by which the force of the knockers may be regulated. Any number of these knockers may be used and properly distributed upon the frame.

Having thus described my invention, what I claim, and desire to secure by Letters Patent isf- 1. The reciprocating frame E, having two or more sieves, each succeeding one occupying a higher plane, and armed at its forward end with metallic plates, all constructed and arranged to operate in the manner and for the purpose specified.

2. In combination with the sieve-frame E, the knockers G G, supported in the adjustable posts N N, substantially as and for the purpose specified.

JOHN J. MAYERS.

Witnesses:

W. H. CLARK, B. PIGKERING. 

